how to print only "cmd" from ps command using perl

Question

I need to extract the cmd from the output of ps. I know that I can use the following to write only the PID using the ps command:

ps ax | perl -nle 'print $1 if /^ *([0-9]+)/'

I am wondering if I could write only the command using something similar.

Answer 1

You can use

ps axhw -o cmd

• h disables headers.
• w prevents the output from being truncated.
• -o cmd identifies which fields to output.

See also the c output modifier.